physical science

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

the support force on a 10-N book that rests on a horizontal surface is

10N

when you step off a moving bus moving 2m/s, your horizontal speed when you meet ground is

2 m/s

A falling object that has reached its terminal speed continues to gain

Neither acceleration or speed

A dropped ball gains speed because

a gravitational force acts on it

which of the following has the largest momentum relative to earth

a pickup truck speeding along a highway

If gravity between the Sun and Earth suddenly vanished, Earth would continue moving in

a straight-line path

in science a theory is

a synthesis of a large body of well-tested knowledge

Technology is mainly

a tool of science

newton's second law focuses on

acceleration

An outcome of universal gravitation is that

all of the above

Which has zero acceleration?

all of the above

which has the greatest mass

automobile battery

The two measurements necessary for calculating average speed are

distance/time

When a crate slides down an incline at a constant velocity it is

dynamic equilibrium

the unit kilowatt hour is a unit of

energy

Success in science is mainly linked to emphasis on

experiments

the scientific method is most effective in

gaining, organizing, and applying new knowledge

according to Newton, the greater the masses of interacting objects, the

greater the gravitational force between them

Science is a body of knowledge that goes back to

humankind's beginnings

When dishes remain on a table when you yank the tablecloth beneath them, you're demonstrating

inertia

if you carry a heavy bag of groceries and bang your hand against the wall,the concept that best explains why your hand hurts is

inertia

A glance at the speedometer on your vehicle will tell you your

instantaneous speed

When a ball increases in speed by the same amount each second, its acceleration

is constant

A kilogram is a measure of an object's

mass

Between mass and weight, the more fundamental quantity is

mass

the language of science is

mathematics

in science, facts

may change

Inertia is defined as a

property of matter

As a bowling ball that rolls off the edge of a table falls, its horizontal component of motion

remains constant

Newton discovered

that gravity is universal

The net force on an object is

the combination of all forces acting on it

Your weight is

the gravitational attraction between you and the earth

Science is concerned mainly with the

the natural world

the conservation of momentum is most closely related to newtons

third law

A ball rolling down an incline has its maximum potential energy at

top

acceleration and velocity are

very different from each other

the quantity that most relates to the size of an object is

volume

Inside a freely-falling runaway elevator, your

weight is zero

your weight is defined to be the force

you exert against a supporting surface

the force required to maintain an object at a constant velocity in free space is equal to

zero


Kaugnay na mga set ng pag-aaral

Week 11: Anxiety D/O's, OCD and Related D/O's, and Trauma & Stressor-Related D/O's

View Set

PrepU: Chapter 14: Nursing Management During Labor and Birth

View Set

11.1 Networking Overview, 11.1.4 Practice Questions

View Set

Quiz 1.1.1 General Safety in the Electronics Classroom

View Set